Harman US

Arvada, CO Weather & Growing Conditions

This Afternoon
78°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 78, with temperatures falling to around 70 in the afternoon. North northeast wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 78°F Chance Showers And Thunderstorms 7 mph NNE 47%
Tonight 51°F Chance Showers And Thunderstorms then Partly Cloudy 1 to 6 mph WNW 30%
Sunday 71°F Chance Showers And Thunderstorms 1 to 7 mph N 27%
Sunday Night 50°F Slight Chance Showers And Thunderstorms then Partly Cloudy 0 to 6 mph NE 22%
Monday 74°F Sunny 0 to 7 mph ENE 2%
Monday Night 51°F Partly Cloudy 0 to 7 mph N 5%
Tuesday 78°F Mostly Sunny 0 to 6 mph NE 10%
Tuesday Night 54°F Partly Cloudy 1 to 5 mph SW 11%
Wednesday 80°F Partly Sunny 1 to 5 mph N 9%
Wednesday Night 54°F Mostly Cloudy 5 mph NW 10%
Thursday 81°F Mostly Sunny 2 to 7 mph SSW 7%
Thursday Night 56°F Mostly Cloudy 1 to 7 mph SSE 12%
Friday 80°F Mostly Sunny then Chance Showers And Thunderstorms 1 to 6 mph SSE 28%
Friday Night 56°F Slight Chance Rain Showers 6 mph SSW 24%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Arvada, CO

Last spring frost
May 5
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
6a

Explore more for Arvada, CO: full frost dates · planting calendar · Colorado frost dates

Climate data from the nearest NOAA station, Wheat Ridge 2, Co (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.